Controlling means.



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CONTROLLING MEANS.

APPLICATION FILED Amm. 191;'.

Patentd Apr. 23,1918,

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4 li t o CONTROLLING MEANS.

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Specification of Letters Patent.

Application led August 25, 1917. Serial No. 188,205.

To all whom t may conce/m.'

Be it known that I, HENRI Vieron JULES J OUFFRET, engineer, citizen ofthe French Republic, residing at Paris, France, have invented certainnew and useful Improvements in Controlling Means, of which the followingis a specification.

rllhis invention relates to controlling means and refers moreparticularly, although not exclusively, to apparatus ofthe' kind inquestion intended for controlling the valves of motors.

The principal object of the invention is to construct apparatus of theclass under Vconsideration so that they can be .more easily regulatedand so that they are more simple than has hitherto been the case.

The controlling means is of the type in which there is provided betweenthe operating part and the part to be operated, an intermediate partwhich part carries a roller or drum, by means of which the motion istransmitted either from the operating part to the intermediate part ori'rom the intermediate part to the part to be operated, and theinvention consists essentially in mounting the roller eccentrically withrespect to an axle on the intermediate part and the furnishing means forturning the roller into and holding it in various positions for thepurposes oi' taking up play or wear.

'I'he invention comprises, in addition to the principal feature justmentioned, certain other features which will be explained more fullyhereafter. It includes particular methods or constructions for carryingthe said invention into eiicct and, as new industrial products, devicesot the class in question embodying the said improvements, as Well asspecial parts suitable for their construction and motors provided withthe devices.

In order that the invention may be more clearly understood it will nowbe described With reference to the accompanying drawing which, as willbe clearly understood is given merely by way of example.

Figure 1 of the said drawing is a side elevation of controlling meansfor controlling the valve of a motor by means oi a cam, the device beingconstructed according to the invention.

Fig. 2 is a section on the lineQ--QA Fig. 1. The same letters ofreference are employed to denote the same parts in both the views.

In the method of carrying out the invention more particularlyillustrated in the drawing and showing, as before stated its applicationto the control of valve mechanism from a cam, a is the cam and is thevalve rod which is to be operated through an intermediate lever c.

According. to the present invention two `axles c1 and c2 are providedmounted on the lever c, and on each oi' these axles is mounted a roller,(Z1 or Z2 in such a way that one of the rollers is in contact with thecam a and the other with the extremity of the valve rod b.

One lof the axles for instance the axle c2 is so formed as to comprisean eccentric portion cgo upon which is mounted the roller d2, it desiredwith the use of an intermediate sleeve or casing c.l

In this way, by turning the axle c2 through a greater or less angle, theoperation is regulated in an extremely simple manner, and means ofcompensation are provided ior talring up any play which may exist;

In some instances, in addition to the arrangement or construction justdescribed it is desirable to provide the axle with means Patented apr.23, inte.,

for locking it in any position into which it 4 has been set when theregulation has beenl effected.

With this object in View it is preferable to form the lever c, `from twoplates, between which are located the rollers Z2 and d1. There isprovided on one of the plates, around the hole provided for the passageof the axle, on the outer face of the plate an enlarged portion 02having teeth adapted to engage the teeth c", and at the other extremityof the axle is a screw thread adapted to enable the said axle to befixed with respect to the lever c by means of a nut.

In this way, in order to eiiect the regulation, it is suiiicient tounscrew lightly the nut, in order to be able to disengage the` teeth0200 from the teeth c to turn the axle c2 through the desired distanceand then to screw u the nut again.

As will be readily understood, the invention is not limited to theparticular con-- struction herein described and shown in theaccompanying drawings, as the construction may be modified. For instancein some -cases a simple plunger may take the place of the lever.

In general any modifications may be introduced within the scope of theappended claims.

What I claim and desire to secure by Let- Patent of the `United Statesof Ameriea is:

l. Controlling means more particularly applieai'ile for control-lingvalp4 ot motors eomprisitgg an operating part, anmperated pa t, and

an intermediate part, tlie latter adapted to receive motion from theoperating part and to transmit it t0 the operated part, a roller on theintermediate part through which the movement is transn'litted from theoperating part to the operated part, a pivot rotatably mounted on saidintermediate part said roller being mounted eeeentrically with respectto said pivot and means for holding,` said pivot in ditt'erent positionsot' rotation with respect to said intermediate part to vary the/angle ofecentricity ot said roller.

Qontrolling means more particularly applicable -for controlling.falvesrotL motors` comprising an operative part, an operated part andan intermediate part adapted to receive motion Jfrom the operating' partand to transmit it to the operated part, a roller on the intermediatepart through which roller the movement is transmitted from theoperatingJ part to the operated part, a carrier upon which said rolleris loosely and rotatably mounted, an axle upon the intermediate partwith respect to which said carrier .is mounted eecentrically, and meansfor look ing the axle in Variousengular positie,

Les

'rotate t' rough the said plates, a projectingr portion 0&3

and to transn'tit it to the operated part. the

said intermediate part etnnprising two plates between which are locatedtwo rollers through which the motion is transmitted7 from the operatingpart to the operated part, one ot' the said rollers being1 mounted soamo eeeentricall)T upon an axle passing;

around tlnI aperture through which the axle passes on the outside ot oneot the plans the said projecting?r portion being provided n'it h teeth,an enlarged extension of the axle pre-- vided with teeth and adapted toengage with the previously mentioned teeth, Va screw threadtal portion`at the otlnr end ot the axle coming beyond the other plate and a nutadapted to screw on to the said screw threadeiportion otl the axle. allsuhstant iallyv as and tor 'the purposes set forth.

In testimonlt7 whereof I have hereunto .set my hand in presence ot twosubscribing witnesses.

HENRI VICTOR JULES JOUlfLltll'l.

lVitnesses Criss. P. Pnnssn, EUGNE JULrQmN.

